Which statement describes the transfer of heat energy that occurs when an ice cube is added to an insulated container with 100 m
1 answer:
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Explanation:
Formula for work done is as follows.
W =
where, k = proportionality constant =
d = separation distance = 0.45 nm =
Now, we will put the given values into the above formula and calculate work done as follows.
W =
=
=
Thus, we can conclude that work required to increase the separation of the two ions to an infinite distance is .
Answer:
The standard heat of formation of Compound X at 25°C is -3095.75 kJ/mol.
Explanation:
Mass of compound X = 7.00 g
Moles of compound X =
Mass of water in calorimeter ,m= 35.00 kg = 35000 g
Change in temperature of the water in calorimeter = ΔT
ΔT = 2.113°C
Specific heat capacity of water ,c= 4.186 J/g °C
Q = m × c × ΔT
Heat gained by 35 kg of water is equal to the heat released on burning of 0.100 moles of compound X.
Heat of formation of Compound X at 25°C:
= -3095.75 kJ/mol